World Record

Michael Phelps went a perfect 8-for-8 in Beijing, breaking Mark Spitz's single-Games record for gold medals. He swam 17 times over nine days and broke the world record in four of his five individual swims. His three relay teams also set world marks.

In his first final, on Aug. 10, Phelps won the 400m IM in 4:03.86, more than a second faster than the record he set a month earlier at Olympic Trials. The next day, Phelps and the U.S. team squeaked out a win in the 4x100m freestyle relay. Phelps' leadoff leg of 47.51 was an American record, but anchor Jason Lezak dove in with more than a half-second deficit. Lezak posted the fastest relay split in history, 46.06, to catch Frenchman Alain Bernard for the win, by just .08 of a second.

Phelps easily won the 200m free, for his third gold in Beijing and his record-tying ninth career gold. But he wasn't tied for long, as the next morning, Phelps won two more gold medals: first, in the 200m butterfly, where the race was tighter than expected. But the only race in the 4x200m freestyle relay was for second, as the U.S. men, with Phelps leading off, broke the record by more than four seconds and beat the field by more than five. Phelps won his sixth gold with a dominating performance in the 200m IM, lowering his world record to 1:54.23, but his seventh gold was by the absolute slimmest of margins, .01 in the 100m butterfly. Phelps appeared to trail Milorad Cavic but his half stroke beat out Cavic's glide to the wall by a nail.

Phelps swam the butterfly leg of the 4x100m medley relay in the final event of the Beijing Olympic swimming competition. He left the blocks with his team third but gave the lead to Jason Lezak, who closed out the victory.